Extension RAM and ROM

Hello!
I'm very interested in the UP Squared Celeron Duo Core 4GB memory / 32GB eMMC
I have two stupid questions:
1) Is it possible to increase ROM by resoldering the eMMC chip?
For example, unsolder 32GB PN:H26M64208EMR and install 128GB PN:KLMDG8JENB-B041.
If so, what chips can be used?
2) Is it possible to increase RAM by installing 2 chips on the available space for them on the board?
If so, what chips should be used?